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6R35 JSY6R35D1-A1903 M-18

6R35取扱説明書

INSTRUCTIONS空気潜水用防水ダイバーズウオッチ

DIVER’S WATCH FOR AIR DIVING

https://www.seikowatches.com/

日本語 ..................................................English ................................................

1JA

1EN

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Thank you very much for choosing a SEIKO watch.For proper and safe use of your SEIKO watch,please read carefully the instructions in this

booklet before using it.Keep this manual handy for easy reference.

* Length adjustment service for metallic bands is available at the retailer fromwhom the watch was purchased. If you cannot have your watch repaired bythe retailer from whom the watch was purchased because you received thewatch as a gift, or you moved to a distant place, please contact SEIKOCUSTOMER SERVICE CENTER. The service may also be available on achargeable basis at other retailers, however, some retailers may not undertakethe service.

* If your watch has a protective film for preventing scratches, make sure to peelit off before using the watch. If the watch is used with the film on it, dirt, sweat,dust, or moisture may be attached to the film and may cause rust.

EN 1

b WARNINGMake sure to read the following instructions before use and strictly observe them.

b WARNINGWhen diving, never carry out operations other than those specified in this instruction manual. Mishandlingof the product and misunderstanding of the displayed content may lead to a fatal or serious accident.b WARNINGThe diver’s watch is an auxiliary instrument which mainly displays the passage of time and does not ensurethe safety of a user. Use this watch while using the equipment (residual pressure gauge, water depth meter,etc.) required for safe diving.b WARNINGNever use this watch for “saturation diving” using helium gas.b WARNINGDo not dive using this product unless you have been properly trained in scuba diving, acquired the requisiteexperience and techniques for safe diving, thoroughly familiarized yourself with the operation and handlingof this product, and inspect all functions of this product prior to each dive.

EN 2

b CAUTIONMake sure to read the following instructions before use and strictly observe them.

b CAUTIONInspect the following items before diving (excluding saturation diving):• The watch is normally operating.• The remaining battery level is sufficient and the mainspring is sufficiently wound.• The rotating bezel turns smoothly. (The bezel rotation must not be too loose or too tight.)• Screws of the crown and other parts are reliably tightened.• No abnormalities such as flaws or cracks exist on the band or glass.• The band is reliably fixed (with spring bar, buckle or other parts.)

* If any abnormality is observed in the above items, do not use this watch for diving.

b CAUTIONDo not operate the crown or buttons underwater.b CAUTIONAs the use environment of the diver’s watch may affect not only the case or band but also the internalmechanism of the watch, we recommend that you periodically request an overhaul for inspection andadjustment approximately once every two to three years.

EN 3

CONTENTS1 HOW TO USE

Handling cautions ............................................ 5Precautions for diving (Please make sure toobserve the following.) .................................... 9

Before diving ................................................ 9While diving ............................................... 11After diving ................................................. 12Structure of the case .................................. 13

Mechanical watch characteristics(Hand-wound, auto-wound) ........................... 14Names of the parts and their functions .......... 15Screw down crown ........................................ 16How to wind the mainspring .......................... 17How to set the time and date ......................... 19

Date adjustment at the end of the month ... 22How to use the rotating bezel ........................ 23

2 TO PRESERVE THE QUALITY OF YOURWATCH

Daily care ...................................................... 25Performance and type ................................... 26Lumibrite ....................................................... 27Magnetic resistant performance .................... 28Band .............................................................. 30How to use the diver adjuster ........................ 32How to use the diver extender ....................... 34After sales service ......................................... 36Accuracy of mechanical watches .................. 38Troubleshooting ............................................ 40Specifications ................................................ 42

EN 4

Handling cautionsb WARNING

Please note that there is a risk of serious consequences such as severe injury if the followingsafety regulations are not strictly observed.Immediately stop wearing the watch in following cases:

○ If the watch body or band becomes edged by corrosion etc.○ If the pins protrude from the band. * Immediately consult the retailer from whom the watch was purchased or SEIKO CUSTOMER SERVICE

CENTER.

Keep the watch and accessories out of the reach of babies and children.Care should be taken to prevent a baby or a child accidentally swallowing the accessories.If a baby or child swallows the battery or accessories, immediately consult a doctor, as it will beharmful to the health of the baby or child.

EN 5

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HOW TO USE

b CAUTIONPlease note that there is a risk of minor injury or material damage if the following safetyregulations are not strictly observed.Avoid the following places for wearing or keeping the watch:

○ Places where volatile agents (cosmetics such as polish remover, bug repellent, thinners etc.) arevaporizing

○ Places where the temperature drops below5°C or rises above 35°C for a long time

○ Places affected by strong magnetism or staticelectricity

○ Places affected by strong vibrations○ Places of high humidity○ Dusty places

If you observe any allergic symptoms or skin irritationStop wearing the watch immediately and consult a specialist such as a dermatologist or an allergist.

Other cautions○ For adjusting the length of the metallic band, specialized knowledge and expertise are necessary.

Therefore, in such a case, contact the retailer from whom the watch was purchased. If you attemptto adjust the metallic band, injury may occur to your hand or fingers, or parts of the band may belost.

○ Do not disassemble or tamper with the watch.○ Keep the watch out of the reach of babies and children. Extra care should be taken to avoid risks

of any injury or allergic rash or itching that may be caused when they touch the watch.○ If your watch is of the fob or pendant type, the strap or chain attached to the watch may damage

your clothes, or injure the hand, neck, or other parts of your body.

EN 6

1HOW

TO USE

b WARNINGNever use the watch, in saturation diving using helium gas.

b WARNINGWhile diving, never operate the watch in any other manner than set forth in the instructionmanual.

b WARNINGBefore using the diver’s watch, you have to be properly trained in various types of diving andpossess the requisite experience and skill to dive safely. When diving, strictly abide by therules of diving.

EN 7

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HOW TO USE

b CAUTIONPlease note that there is a risk of minor injury or material damage if the following safetyregulations are not strictly observed.

Do not turn or pull out the crown when the watch is wet.Water may get inside of the watch. * If the inner surface of the glass is clouded with condensation or water droplets appear

inside of the watch for a long time, the water resistant performance of the watch isdeteriorated. Immediately consult the retailer from whom the watch was purchased orSEIKO CUSTOMER SERVICE CENTER.

Do not leave moisture, sweat and dirt on the watch for a long time.Be aware of a risk that a water resistant watch may lessen its water resistantperformance because of deterioration of the adhesive on the glass or gasket.

Do not wear the watch while taking a bath or a sauna.Steam, soap or some components of a hot spring may accelerate the deteriorationof water resistant performance of the watch.

EN 8

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HOW TO USE

Precautions for diving (Please make sure to observe the following.)■ Before divingBefore diving, check the following: * “Names of the parts and their functions” → P. 15

1 The time is correctly set.

2 Turn the crown to wind up thewatch so that it does not stop inthe water. * “Screw down crown” → P. 16 * “How to wind the mainspring” → P. 17

3 The rotating bezel turnssmoothly.(The bezel rotation must not betoo loose or too tight.) * “How to use the rotating bezel” → P. 23

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23

EN 9

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HOW TO USE

4 The crown is completelyscrewed in. * “Screw down crown” → P. 16

5 There are no visible cracks orscratches on the crystal orwatch band.

6 The band is firmly attached tothe watch (with spring bars,clamp or other parts.)

b CAUTIONIf there are any malfunctions, contact the retailer from whom the watch was purchasedor SEIKO CUSTOMER SERVICE CENTER.

45 6

EN 10

1HOW

TO USE

■ While divingPlease observe the following cautions for use.

The watch can be used for air diving within the waterresistant range displayed on the dial.

Do not operate the crown or buttons underwater.

Take care not to bump the watch against hardobjects such as rocks.

Bezel rotation may become slightly harder in thewater but this is not a malfunction.

EN 11

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HOW TO USE

■ After divingPlease follow the care instructions below after diving.

Rinse the watch in fresh water to wash out all seawater and wipe it thoroughly dry to prevent rust.Avoid pouring running water onto the watch directly from a faucet. Put some water into a bowl first, andthen soak the watch in the water to wash it.

b CAUTIONDepending on the environment where a diver’s watch is used, its inner parts or movementas well as its case or band may be affected. We recommend that you have your watchoverhauled regularly once every 2 or 3 years.

EN 12

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HOW TO USE

■ Structure of the caseIn the following types of models, take care of the following issues in usage.The bezel or protective outer case is securely fastened to the watch with setscrews.Never loosen the setscrews.

setscrew setscrew

* The above illustration is provided as an example, therefore it may not be exactly the same as your watch.

b CAUTIONNever loosen the setscrews used to fix the bezel or protective outer case.Doing so may cause damage or result in further loosening. * If you find that the setscrews have become loose or are functioning abnormally, consult the retailer from whom

the watch was purchased or SEIKO CUSTOMER SERVICE CENTER.

EN 13

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HOW TO USE

Mechanical watch characteristics (Hand-wound, auto-wound)• This is a mechanical watch powered by a spring.• To use it from a stopped state, turn the crown 20 turns by hand to wind up the spring before starting the

watch.• Although the accuracy of quartz watches is measured in differences over months or years, in mechanical

watches it is measured in differences per day (i.e., the amount the watch speeds up or slows down in asingle day).

• Additionally, mechanical watches are subtly affected by the conditions in which they are used (e.g.,duration worn, temperature, arm movement, the amount wound, etc.) ; thus, the amount of error is notconstant.

• When affected by a strong magnetism from outside, a mechanical watch may lose/gain time temporarily.The parts of the watch may become magnetized depending on the extent of the effect. In such a case,consult the retailer from whom the watch was purchased since the watch requires repair includingdemagnetizing.

EN 14

1HOW

TO USE

Names of the parts and their functions1 Minute hand2 Hour hand3 Seconds hand4 Date5 Rotating bezel6 Crown

• Normal position (not locked):Wind up the watch (hand-wound)

• First click position: Timedifference adjustment/ Datesetting

• Second click position: Timesetting

1

4

5

6

2

3

EN 15

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HOW TO USE

Screw down crownThe screw down crown features a mechanism that can securely lock the crown when it is notbeing operated in order to prevent any operational errors and to improve its water resistantperformance.• It is necessary to unlock the screw down crown before operating it.• Once you have finished operating the crown, make sure to relock it.

【To unlock the crown】Turn the crown counterclockwise to unscrew it.Now the crown can be operated.

【To lock the crown】Turn the crown clockwise while gently pressing it intoward the watch body until it stops.

Crown lockedUnlock the crown beforeoperating it.

Crown unlocked After operating the crown,lock it.

Unscrew Rotate whilepressing

the crown in.

* When locking the crown, turn it slowly with care, ensuring that the screw is properly engaged. Be careful not topush it in forcefully, as doing so may damage the screw hole in the case.

EN 16

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HOW TO USE

How to wind the mainspring• This is an automatic mechanical watch with a manual winding mechanism.• When the watch is worn on the wrist, the mainspring is wound automatically through normal wrist

movement. The watch can also be wound up by turning the crown.• To start the watch after it stops completely, wind it up either by turning the crown or swinging it from side

to side until the seconds hand starts moving. Then, set the time and date before putting the watch onthe wrist. To wind up the watch, unscrew the crown by turning it counterclockwise, and then, turn itclockwise slowly. The watch cannot be wound by turning the crown counterclockwise. In this way, thewatch can be wound up fully. Furthermore, turning the crown further will not break the spring.

• Once the watch is wound up fully, it operates for about 70 hours.

EN 17

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HOW TO USE

* If the watch is used without being wound up fully, gain or loss of time may result. To avoid this, wear the watch formore than 10 hours a day. If the watch is used without being worn on the wrist, be sure to wind it up fully every dayat a fixed time.

* If you use a watch that has stopped with the mainspring unwound, winding the mainspring with the crown will notstart the watch immediately. That is because the mainspring torque or force is low at the beginning of its windingdue to the characteristics of mechanical watches. The seconds hand will start to move when a certain degree oftorque is reached after the mainspring has been wound up. However, swinging the watch from side to side toforcibly turn the balance can start the watch sooner.

EN 18

1HOW

TO USE

How to set the time and dateThe watch is provided with a date function and is so designed that the date changes once every24 hours.The date changes around 12 o’clock midnight. If AM/PM is not properly set, the date will changeat 12 o’clock noon.

b CAUTIONDo not set the date between 9:00 p.m. and 1:00 a.m.Amending the date during this time period may cause problems such as the date failingto change the next day.

EN 19

1

HOW TO USE Pull out the crown to the

first click

3 The date can be set by turning the crown counterclockwise.Turn it until the previous day’s date appears.Ex.) To display the date as “6,” then set this to “5.” Turn the crown to the left (counterclockwise) to setthe date.

1 Unlock the crown. * “Screw down crown” → P. 16

2 Pull out the crown to the firstclick.

EN 20

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HOW TO USE

5 Push the crown back in to the normal position in accordance with a time signal.The seconds hand immediately starts moving. * The telephone time signal service is helpful for setting the seconds hand exactly.

6 Relock the crown. * “Screw down crown” → P. 16

b CAUTIONThe mechanism of mechanical watches is different from that of quartz watches.When setting the time, be sure to turn back the minute hand a little behind the desiredtime and then advance it to the exact time.

4 Pull out the crown to the second click and setthe time.Pull out the crown to the second click when the secondshand is at the 12 o’clock position; the seconds hand stopson the spot.Turn the crown to advance the hands until the datechanges to the next. The time is now set for the A.M. period.Advance the hands to set the correct time.

EN 21

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HOW TO USE

■ Date adjustment at the end of the monthIt is necessary to adjust the date at the end of February and 30-day months.Ex.) To adjust the date in the A.M. period on the first day of a month following a 30-day monthThe watch displays “31” instead of “1.” Pull out the crown to the first click.Turn the crown counterclockwise to set the date to “1” and then push the crown back in to the normalposition.

Pull out the crown to thefirst click

b CAUTION• Return the screw down crown fully to its original position.• Avoid amending the date when the watch is displaying between 9 PM and 1 AM. Doing

so may cause damage.

EN 22

1HOW

TO USE

How to use the rotating bezelBy setting the rotating bezel beforehand, the elapsed time since the start of an event can be measured.

Example: When you start diving at 10:10 am.

Align the markwith the minute handRotating direction ofthe bezel

Example: After 20 minutes has elapsed

Elapsed time


1 At the start of the event, for whichyou want to measure the elapsedtime (for example, when you startdiving), rotate the bezel so thatthe mark on the bezel isaligned with the minute hand. * The rotating bezel is designed to rotate only

counterclockwise.Do not forcibly rotate it clockwise.“[One-Way rotating bezel]” → P. 24

2 Read the graduation on therotating bezel to which theminute hand is pointing.The graduation on the rotating bezel towhich the minute hand is pointing indicatesthe elapsed time.

EN 23

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HOW TO USE

[One-Way rotating bezel]As the evaluation of the remaining air in your cylinder is based on the information of the elapsed time of the dive,the rotating bezel for a diver’s watch is designed to rotate only counterclockwise, so that the watch is preventedfrom displaying the elapsed time shorter than it actually is.

b CAUTIONMake sure that you check the correct remaining amount of air in your cylinder before diving.Use the display of the elapsed time by the rotating bezel only as a guide during diving.

EN 24

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HOW TO USE

Daily care● The watch requires good daily care• Do not wash the watch when its crown is in the extended position.• Wipe away moisture, sweat or dirt with a soft cloth.• After soaking the watch in seawater, be sure to wash the watch in clean pure water and wipe it dry

carefully.Do not pour running water directly from a faucet onto the watch. Put some water into a bowl first, andthen soak the watch in the water to wash it.

* If your watch is rated as “Non-water resistant” or “water resistant for everyday life”, do not wash the watch.“Performance and type” → P. 26

● Turn the crown from time to time• In order to prevent corrosion of the crown, turn the crown from time to time.• The same practice should be applied to a screw down crown.

“Screw down crown” → P. 16

EN 25

2

TO PRESERVE THE QUALITY OF YOUR WATCH

Performance and typeThe case back shows the caliber and performance of your watch

Water resistant performance

Case NumberMagnetic resistantperformance

• Water resistant performance• Case Number

The number to identify the type of your watch.

• Magnetic resistant performanceRefer to pages P. 28 and P. 29.


EN 26

2


LumibriteIf your watch has LumibriteLumibrite is a luminous paint that absorbs the light energy of sunlight and lighting apparatuses in a shorttime and stores it to emit light in the dark. For example, if exposed to a light of more than 500 lux forapproximately 10 minutes, Lumibrite can emit light for 3 to 5 hours. Please note, however, that, as Lumibriteemits the light it stores, the luminance level of the light decreases gradually over time. The duration of theemitted light may also differ slightly depending on such factors as the brightness of the place where thewatch is exposed to light and the distance from the light source to the watch. * In general, when coming from a place that is bright to a place that is dark, it takes human eyes some time to adapt

to the darkness making it difficult to see objects initially. (Dark adaptation) * Lumibrite is luminous paint that stores and emits light, which is harmless to human beings and the environment,

containing no toxic materials such as radioactive substances.<Brightness levels>

Condition IlluminationSunlight Fine weather 100,000 lux

Cloudy weather 10,000 luxIndoor (Window-side during

daytime)Fine weather more than 3,000 lux

Cloudy weather 1,000 to 3,000 luxRainy weather less than 1,000 lux

Lighting apparatus (40-watt daylightfluorescent light)

Distance to the watch: 1 m 1,000 luxDistance to the watch: 3 m 500 lux (average room luminance)Distance to the watch: 4 m 250 lux

EN 27

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Magnetic resistant performanceAffected by nearby magnetism,

a watch may temporarily gain or lose time or stop operating.Diver’s watches feature magnetic resistant performance which is equivalent to or above JIS Class 1.

b DANGERIndication on the case back Condition of use

No indication Keep the watch more than 5 cm away from magnetic products.(JIS level-1 standard)

Keep the watch more than 1 cm away from magnetic products.(JIS level-2 standard)

If the watch becomes magnetized and its accuracy deteriorates to an extent exceeding the specified rateunder normal use, the watch needs to be demagnetized. In this case, you will be charged fordemagnetization and accuracy readjustment even if it happens within the guarantee period.The reason why a watch is affected by magnetismThe built-in balance spring may be influenced by a strong external magnetic field.

EN 28

2


Examples of common magnetic products that may affect watches

Smartphone, cellular phone,tablet terminal (speaker)

AC adapter Bag(with magnet

buckle)

AC-poweredshaver

Magnetic cookingdevice

Portable radio(speaker)

Magneticnecklace

Magnetic healthpillow

EN 29

2


BandThe band touches the skin directly and becomes dirty with sweat or dust. Therefore, lack of caremay accelerate deterioration of the band or cause skin irritation or stain on the sleeve edge.The watch requires a lot of attention for long usage.

● Metallic band• Moisture, sweat or soil will cause rust even on a stainless steel band if they are left for a long time.• Lack of care may result in a rash or cause a yellowish or gold stain on the lower sleeve edge of shirts.• Wipe off moisture, sweat or soil with a soft cloth as soon as possible.• To clean the soil around the joint gaps of the band, wipe it out in water and then brush it off with a soft

toothbrush.(Protect the watch body from water splashes by wrapping it up in plastic wrap etc.)Clean it off with a soft cloth.

• Because some titan bands use pins made of stainless steel, which has outstanding strength, rust mayform in the stainless steel parts.

• If rust advances, pins may poke out or drop out, and the watch case may fall off the band, or the claspmay not open.

• If a pin is poking out, personal injury may result. In such a case, refrain from using the watch and requestrepair.

EN 30

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● Polyurethane band• A polyurethane band is susceptible to discoloration from light, and may be deteriorated by solvent or

atmospheric humidity.• Especially a translucent, white, or pale colored band easily adsorbs other colors, resulting in color smears

or discoloration.• Wash out dirt in water and clean it off with a dry cloth.

(Protect the watch body from water splashes by wrapping it up in plastic wrap etc.)• When the band becomes less flexible, have the band replaced with a new one. If you continue to use

the band as it is, the band may develop cracks or become brittle over time.● Silicone band• As for material characteristics, the band is easily dirtied, and may be stained and discolored.

Wipe off dirt with a wet cloth or cleaning tissue.• Unlike bands of other materials, cracks may result in the band being cut. Take care not to damage the

band with an edged tool.Notes on skinirritation andallergy

Skin irritation caused by a band may result from various factors such as allergy tometals or leathers, or skin reactions against friction on dust or the band itself.

Notes on thelength of the band

Adjust the band to allow a little clearance with your wrist to ensure properairflow.When wearing the watch, leave enough room to insert a finger betweenthe band and your wrist.

EN 31

2


How to use the diver adjusterIf your watch’s metallic band has the Diver Adjuster function, the length of the band can be easilyadjusted.It is very useful when you wear the watch over a wet suit or winter clothing.

Flap 20° 90°

Band on the 6o’clock side ofthe watch

1 Lift up the flap approximately90°until it stands upright, andthen press the flap downfurther approximately 20°andlightly hold it.• When doing so, take care not to push

the flap forcibly. Although you may feelslight resistance, doing this requiresonly a light force.

2 Lightly pull the band on the 6o’clock side of the watch alongthe curved line of the band topull out the slider.• Doing this requires only a light force.

Take care not to pull the band forcibly.• The slider can be pulled out

approximately 30 mm. Take care notto pull it out more than this limit.

EN 32

2


Clasp Push button

Flap(4-2)

Clasp(4-1)

3 While pressing the pushbutton, lift up the clasp torelease the buckle, and placethe watch on your wrist.

4 Close the clasp (4-1) first andthen, the flap (4-2).

5 Hold both sides of the band toadjust the length of the slideruntil it fits snugly around yourwrist.

EN 33

2


How to use the diver extenderIf your watch’s metallic band has the Diver Extender function, the length of the band can be easilyadjusted.It is very useful when you wear the watch over a wet suit or winter clothing.

Flap

Clasp

Push button

1 Lift up the flap.

2 While pressing the pushbutton, open the clasp.• After opening the clasp, push the flap

back to the normal position for safety’ssake.

EN 34

2


Two-piece foldover portion ofthe Diver Extender

Upper cover of the Diver Extender

Flap(5-2)

Clasp(5-1)

3 Open the two-piece foldoverportion of the Diver Extender inthe direction of the arrow.• Some force is required to open the

foldover portion, and it will click whenit is opened.

4 Slide the upper cover of theDiver Extender in the directionof the arrow, and then, pull it upto extend the two-piecefoldover portion to the fullextent.

5 Place the watch on your wrist,and close the clasp (5-1) firstand then, the flap (5-2). * To fold up the Diver Extender, reverse the

procedure above. When the two-piecefolder portion of the Diver Extender isfolded up completely, it also clicks in thesame manner as when it is opened.

EN 35

2


After sales service● Notes on guarantee and repair• Contact the retailer from whom the watch was purchased or SEIKO CUSTOMER SERVICE CENTER

for repair or overhaul.• Within the guarantee period, present the certificate of guarantee to receive repair services.• Guarantee coverage is provided in the certificate of guarantee.

Read carefully and retain it.• For repair services after the guarantee period has expired, if the functions of the watch can be restored

by repair work, we will undertake repair services upon request and payment.

● Replacement with functional parts• Please keep in mind that if original parts are not available, they may be replaced with substitutes whose

outward appearance may differ from the originals.

EN 36

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● Inspection and adjustment by disassembly and cleaning (overhaul)• Periodic inspection and adjustment by disassembly and cleaning (overhaul) is recommended

approximately once every 2 to 3 years in order to maintain optimal performance of the watch for a longtime.

• The power transmission gear of the movement of this watch constantly receives force. To ensure thatthis mechanism works properly all the time, washing parts, changing oil, adjusting accuracy, checkingfunctions and replacing consumable parts on a regular basis are important. The first overhaul after thepurchase of your watch is particularly important for preserving long-time use of your watch. Accordingto use conditions, the oil retaining condition of your watch mechanical parts may deteriorate, abrasionof the parts due to contamination of oil may advance or delay the time significantly, or the watch itselfmay stop.As the parts such as gasket may deteriorate, water resistant performance may be impaired due tointrusion of perspiration and moisture.Inspection and adjustment by disassembly and cleaning (overhaul) should be performed by the retailerfrom whom the watch was purchased, and who specifies “SEIKO GENUINE PARTS.” At this time, alsorequest replacement of the gasket and the spring bar.

• When your watch is inspected and adjusted by disassembly and cleaning (overhauled), the movementof your watch may be replaced.

b CAUTIONDepending on the environment where a diver’s watch is used, its inner parts or movementas well as its case or band may be affected. We recommend that you have your watchoverhauled regularly once every 2 or 3 years.

EN 37

2


Accuracy of mechanical watches○ The accuracy of mechanical watches is indicated by the “daily rate.”○ The accuracy of mechanical watches may not fall within the specified

range of time accuracy because loss/gain changes according to theposition of the watch, which is dependent on the conditions of use,such as the length of time during which the watch is worn on the wrist,arm movement, and whether the mainspring is wound up fully or not,etc.

○ The loss/gain of mechanical watches is not measured by a daily rate,but by daily rates of one week or so.

○ Accuracy variation according to temperatureThe parts that compose the accuracy of mechanical watches are made of metals. It is well known thatmetals expand or contract depending on temperatures due to metal properties. This exerts an effect on theaccuracy of the watches. Mechanical watches tend to lose time at high temperatures while they tend togain time at low temperatures.

EN 38

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○ Mainspring wound condition and accuracyIn order to improve accuracy, it is important to regularly supply energy to the balance that controls the speedof the gears. The driving force of the mainspring that powers mechanical watches varies between whenfully wound and immediately before it is unwound. As the mainspring unwinds, the force weakens.Relatively steady accuracy can be obtained by wearing the watch on the wrist frequently for the self-windingtype and winding up the mainspring fully everyday at a fixed time to move it regularly for the wind-upmechanical type.

○ Effect of magnetismWhen affected by a strong magnetism from outside, the mechanical watch may lose/gain time temporarily.The parts of the watch may become magnetized depending on the extent of the effect.In such a case, consult the retailer from whom the watch was purchased since the watch requires repairincluding demagnetizing.

EN 39

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TroubleshootingTroubles Possible causes Solutions

The watch stopsoperating. The mainspring has not been wound.

Wind up the watch as per “How to wind themainspring” → (P. 17), and set the time. If thewatch still does not operate, consult theretailer from whom the watch was purchased.

The watch temporarilygains/loses time.

The watch has been left in extremely high orlow temperatures for a long time.

Return the watch to a normal temperature sothat it works accurately as usual, and thenreset the time. The watch has been adjustedso that it works accurately when it is worn onyour wrist under a normal temperature rangebetween 5°C and 35°C.

The watch has been left close to an objectwith a strong magnetic field.

Correct this condition by moving and keepingthe watch away from the magnetic source,and reset the time. If this action does notcorrect the condition, contact the retailer fromwhom the watch was purchased.

You drop the watch, hit it against a hardsurface, or wear it while playing active sports.The watch is exposed to strong vibrations.

If accuracy does not return after setting thetime, consult the retailer from whom the watchwas purchased.

The watch has not been overhauled for morethan 3 years.

Consult the retailer from whom the watch waspurchased.

EN 40

2


Troubles Possible causes SolutionsThe date changes at 12o’clock noon. AM/PM is not properly set. Advance the hands by 12 hours.Blur in the displaypersists.

Small amount of water has got inside thewatch due to deterioration of the gasket, etc.

Consult the retailer from whom the watch waspurchased.

* For a solution to a problem other than listed above, contact the retailer from whom the watch was purchased.

EN 41

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SpecificationsCal. 6R35

1.Features 3 hands (hour, minute, second), date display2. Vibrations per hour 21,600 vibrations/hour (6 vibrations/sec)

3. Loss/gain (daily rate) +25 to -15 seconds at normal temperature rangeOnly if worn on the wrist in a temperature range of 5°C to 35°C.

4. Driving system Automatic winding type with manual winding mechanism5. Duration Approx. 70 hours6. Jewels 24 jewels

* The accuracy above is factory-adjusted. * Due to the characteristics of mechanical watches, any actual daily rate may not fall within the range of time accuracy

specified above dependent on the conditions of use, such as the length of time during which the watch is worn onthe wrist, temperature, arm movement, and whether the mainspring is wound up fully or not, etc.

EN 42

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6r35 jsy6r35d1-a1903 m-18 - seiko...seiko customer service center. do not leave moisture, sweat and...

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